My dad is a landscaper and he says you don’t alway need the biggest baddest tool to take down a tree. What you need is your brain and understanding on how to use what you have. In other words you don’t have to rent the big tools, you can rent the smaller ones you feel safe with. And alway check to see if the chain is put on the right way. Sometimes stores are busy and install them backwards. Never fear to ask questions about a new power tool. The more you know the safer you are. And last but not least, gas powered is not alway stronger then electric powered.